package cn.dckeji.dcssm.common.utils;

import javax.servlet.http.HttpServletRequest;

/**
 * @author kenny
 * @Title: IPUtil
 * @ProjectName dcssm
 * @Description: IP地址操作工具类
 * @date 2019/3/4 9:35
 */
public class IPUtil {

    /**
     * 获取远程访问主机ip地址
     * @param request
     * @return
     */
    public static String getRemortIP(HttpServletRequest request) {
        String ip = request.getHeader("x-forwarded-for");
        if ((ip == null) || (ip.length() == 0) || ("unknown".equalsIgnoreCase(ip))) {
            ip = request.getHeader("Proxy-Client-IP");
        }
        if ((ip == null) || (ip.length() == 0) || ("unknown".equalsIgnoreCase(ip))) {
            ip = request.getHeader("WL-Proxy-Client-IP");
        }
        if ((ip == null) || (ip.length() == 0) || ("unknown".equalsIgnoreCase(ip))) {
            ip = request.getRemoteAddr();
        }
        return ip;
    }

}
